A significant tool for probing non-perturbative/strongly-coupled physics in quantum field theories is an IR duality,
where two theories which are manifestly different in the UV flow to the same physical theory in the IR.
Supersymmetric gauge theories in three dimensions have an extremely rich structure of these IR dualities.
A very well-known class is the \({\cal N}=4\)  mirror symmetry [1]} – an IR duality that exchanges the
Coulomb and the Higgs branches in the deep IR. An \({\cal N}=2\) 
version of the duality can be obtained by deforming the \({\cal N}=4\)  duality with an appropriate superpotential.
